Color

#2d3143

#2d3143
hex#2d3143
rgbrgb(45, 49, 67)
hslhsl(229, 20%, 22%)
oklchoklch(0.317 0.033 274.7)
Closest name: Blue Whale (#1e3442)Relative luminance 0.0316

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#433f2d

#2d3c43 · #342d43

#432d31 · #31432d

Split-complementary

Open in tool →

#43342d · #3c432d

#432d3c · #433f2d · #2d4334

Contrast

#2d3143 as textRatioAAAA largeAAAFix
Aaon white
12.87:1passpasspassPasses AAA — no fix needed.
Aaon black
1.63:1failfailfail
  • AA: use #6c759d as the text (4.67:1)
  • AAA: use #8e95b4 as the text (7.11:1)
  • AA: or shift the background to #999999 (4.52:1)
  • AAA: or shift the background to #c2c2c2 (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d3143 as the background.

Brands using this color

Fonts for this mood

#2d3143 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d3143
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #2d3143 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d3143-9c9fc4-df7e4e-231f2d-e9eef1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md